A. current in the starting winding leads the voltage
B. current in the starting winding lags the voltage
C. current in the starting winding is in phase with voltage in running winding
D. none of the above
Related Mcqs:
- A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?
A. start and then stop
B. start and run slowly
C. start and run at rated speed
D. not start at all - In a capacitor start single-phase motor, when capacitor is replaced by a resistance____________?
A. torque will increase
B. the motor will consume less power
C. motor will run in reverse direction
D. motor will continue to run in same direction - In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to_______________?
A. improve power factor
B. increase overload capacity
C. reduce fluctuations in torque
D. to improve torque - In a capacitor start motor, the phase displacement between starting and running winding can be nearly__________?
A. 10°
B. 30°
C. 60°
D. 90° - If the capacitor of a single-phase motor is short-circuited_________?
A. the motor will not start
B. the motor will run
C. the motor will run in reverse direction
D. the motor will run in the same direction at reduced r.p.m - The capacitors used in single-phase capacitor motors have no__________?
A. voltage rating
B. dielectric medium
C. polarity marking
D. definite value - In a two value capacitor motor, the capacitor used for running purposes is_______________?
A. air capacitor
B. paper spaced oil filled type
C. ceramic type
D. a.c. electrolytic type - In which single-phase motor, the rotor has no teeth or winding ?
A. Split phase motor
B. Reluctance motor
C. Hysteresis motor
D. Universal motor - The starting winding of a single-phase motor is placed in_________?
A. armature
B. field
C. rotor
D. stator - After the starting winding of a single phase induction motor is disconnected from supply, it continues to run only on ______________?
A. running winding
B. rotor winding
C. field winding
D. compensating winding
